一个有关海明码的原程序！！适合教师实验课讲授！-A Hamming code of the original program! ! Experimental courses for teachers to teach!

decoder of Hamming Use a [7,4] Hamming code. m = 3 n = 2^m-1 k = n-m parmat = hammgen(m) Produce parity-check matrix. trt = syndtable(parmat) Produce decoding table. recd = [1 0 0 1 1 1 1] Suppose this is the received vector. syndrome =

信源函数 randerr 产生比特误差样本 randint 产生均匀分布的随机整数矩阵 randsrc 根据给定的数字表产生随机矩阵 wgn 产生高斯白噪声 信号分析函数 biterr 计算比特误差数和比特误差率 eyediagram 绘制眼图 scatterplot 绘制分布图 symerr 计算符号误差数和符号误差率 信源编码 compand mu律/A律 压缩/扩张 dpcmdeco DPCM（差分脉冲编码调制）解码 dpcmen